Frederick white



(No Model.)`

F. WHITE. BIGYGLE TIRE.

Np.- 508,456@A VPadzaated Nov. 14,1893..

\N n missie.

we mmamu. umosnnrnme COMPANY.

UNI-TED STAT-ns PATENT OFFICE.

FREDERICK WHITE, OF BOSTON, MASSACHUSETTS, ASSIGN OR TO EDWARD S.

BEACH, TRUSTEE,

OF SAME PLACE.

SPECIFICATION forming part of" Letters Patent No. 508,456, dated November 14, 1893.

Applicationiiled April 24, 1893.

To all whom it may concern: o

Be it known that I, FREDERIOKWHITE, of

' Boston, in the county of Suffolk and State of Massachusetts, have invented a new and useful Improvement in Bicycle and other Tires, of which the following isa specification, reference being had to the accompanying drawings, in which- Figure lis a side View of a portion of a rim and tire embodying my invention, a part being broken away for greater clearness. Fig. 2 is a cross-sectionalview on line 2-2 of Fig. l, and Fig. 3 is a partial cross-sectional view at line 3 3 of Fig., l. Fig. 4 is a cross-sectional view illustrating positions of different elements of my new tire while the same is being put in place onvthe rim. Fig. 5 shows a modification.

The object of my invention is to produce a tire combining proper strength with extreme lightness, and my invention consists mainly y in the combination of a troughed rim with a split sheath having a shoulder along each of its four margins, a pair of hoops, a clamp engaging the hoops and an inflatable tube, all as more specifically set forth below.

In the drawings, l is the troughed rim, and 2 the split sheath Whichis formed with marginal shoulders 3, 4, 5 and 6, shoulders 3 and 5 being onrthe inner margins, and shoulders 4 and 6 on the outer margins of sheath 2.

7 and 8 are hoops preferably of a line quality of steel.

9 is a transverse clamp Vformed with shoulders lO.

11 is one form of Valve stem projecting into the inflatable tube.` When these parts are assembled, the outer marginal shoulders4 and 6 of sheath 2 engage'the sides andbottom of .rim l, the hoops and 8 clamping the edges of sheath 2 against the rim and resting in the angles formed by the inner shoulders3 and 5 respectively with the adjacent inner surface of the sheath. `The shoulders or fingers l0, 10 of the clamp 9 engage the hoops and bind them in their resting places, the shoulders 3 and 5 serving as abutments to prevent closer lateral approach of the hoops. The clamp 9 is preferably held inv place by the head of valve stem ll, which receives a nut which bears against the inner periphery of rim 1.

Serial No. 471,705. (No model.)

Ordinarily I use but one clamp 9, but in case a plurality of clamps 9 is desired, ordinary bolts and nuts may be used to retain them in place. The clamp 9, shown, is formed with a tubular projection 12, which is between the opposed edges of the sheath but does not bottom on the rim. The use of such a form of clamp prevents all possibility of the sheaths creeping, but vis not absolutely necessary to 6o this end. n

In Fig. 4, I illustratethe parts in process of assemblage, the .hoops being crowded into place bv exterior pressure on the sheath after the shoulders are located in the troughed rim. By thisx construction, an exceedingly strong and light tire is produced, the sheath-,of which is readily removed and replaced for repairing the air-tube.

In Fig. 5, the clamp 9 is dispensed with and 7o the sheath held in place by the hoops 7 and 8.

What I claim isl. In a tire, the herein described combina-v tion of a troughed rim, a sheath, an inner inatable tube, a pair of interior hoops, a transverse clamp and means for holding it in place, the sheath being formed with shoulders along each margin, the outer shoulders engaging the rim, the inner shoulders being engaged by the hoops, and the transverse clamp holding 8o the hoops' against the inner sho ulders, all substantially as and for the purpose set forth.

2. In a tire, the combination of a troughed rim, a sheath and interior expansible tube with a pair of hoops intermediate theV sheath and eXpansible tube, the sheath being provided with a shoulder along each margin, the outer shoulders lying in the rim, and the inner shoulders forming abutments to prevent the h'oops moving laterally, all substantially 9o as and for the purpose set forth.

3. In a tire, the combination of a troughed rim and a split sheath with a pair of hoops, the sheath being formed with outer marginal shoulders engaging the flanges of the rim, and with inner marginal shoulders forming. abutments for the hoops, all substantially as and for the purpose set forth.

' FREDERICK WHITE.

Witnesses:

EDWARD S. BEACH, CHAS. E. BOWERS. 

